flash, target: avoid logging of numeric target state

Replace it by target_state_name() helper.

Change-Id: I720f2bf121e6fd2c6987a7e8fa9e52593888ee6c
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: https://review.openocd.org/c/openocd/+/8918
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

src/target/espressif/esp32s3.c

@@ -193,8 +193,8 @@ static int esp32s3_soc_reset(struct target *target)
 		xtensa_poll(target);
 		if (timeval_ms() >= timeout) {
 			LOG_TARGET_ERROR(target,
-				"Timed out waiting for CPU to be reset, target state=%d",
-				target->state);
+				"Timed out waiting for CPU to be reset, target state %s",
+				target_state_name(target));
 			get_timeout = true;
 			break;
 		}